Omnivory and resource - sharing in nutrient - deficient Rio Negro waters: stabilization of biodiversity?
نویسندگان
چکیده
منابع مشابه
Podzolisation and exportation of organic matter in black waters of the Rio Negro (upper Amazon basin, Brazil)
In the Rio Negro basin, podzols develop at the expense of clay-depleted laterites through localised and spectacular weathering fronts. This natural process leads to the remobilization of previously accumulated organic matter (OM) and elements (Al, Fe, Si). OM is thus redistributed within soil profiles and exported towards rivers, giving them their typical black coloration. In soils, this redist...
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Children in urban and rural parts of the Brazilian Amazon were interviewed in Portuguese on how they understand and value their relationship with the natural environment. Forty-four 5th-grade children (mean age = 13 years, 8 months) participated. Children in both locations were aware of environmental problems, believed that throwing garbage in the Rio Negro harmed various parts of the environme...
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To understand marine biodiversity in Japanese waters, we have compiled information on the marine biota in Japanese waters, including the number of described species (species richness), the history of marine biology research in Japan, the state of knowledge, the number of endemic species, the number of identified but undescribed species, the number of known introduced species, and the number of ...
متن کاملa study of relationship between knowledge sharing and organizational agility among personnel in esfahan power electric distribution company
پژوهش حاضر به بررسی رابطه بین تسهیم دانش و چابکی سازمانی در شرکت توزیع برق استان اصفهان پرداخته است . ابزار سنجش در این پژوهش پرسشنامه می باشد . به منظور سنجش متغیر تسهیم دانش از پرسشنامه وانگ و وانگ و جهت سنجش چابکی سازمانی از پرسشنامه چاربونیر استفاده شده است . هدف پژوهش حاضر تحلیل رابطه میان تسهیم دانش و چابکی سازمانی از دید کارکنان شرکت توزیع برق استان اصفهان می باشد . جامعه آماری این پژوه...
15 صفحه اولNutrient uptake rate and removal efficiency of Vetiveria zizanioides in contaminated waters
This research compares the performance of floating systems planted with Vetiveria zizanioides as a hydroponic approach for removing nutrients from two contaminated waters. For this purpose, two pilots with overall net volume of 60 litres were constructed and inoculated by secondary treated domestic wastewater (STDW) and irrigation water obtained from Minab reservoir (IWMR) in batch mode. Regard...
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ژورنال
عنوان ژورنال: Acta Amazonica
سال: 2009
ISSN: 0044-5967
DOI: 10.1590/s0044-59672009000300017